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3-Digit by 1-Digit Multiplication Worksheet

Mental maths lesson 22: Multiply 3-digit by 1-digit, hundreds first · Set 805 · 40 questions
TalentJR

How to do it in your head (Biggest part first): Split the 3-digit number into hundreds, tens and ones. Multiply the hundreds and keep that number in your head. Multiply the tens and add, then multiply the ones and add.

NameDateTime takenScore ___ / 40
  1. 1.628 × 3 =
  2. 2.635 × 3 =
  3. 3.456 × 7 =
  4. 4.818 × 8 =
  5. 5.956 × 5 =
  6. 6.831 × 8 =
  7. 7.867 × 3 =
  8. 8.867 × 7 =
  9. 9.349 × 9 =
  10. 10.462 × 5 =
  11. 11.339 × 8 =
  12. 12.983 × 4 =
  13. 13.869 × 8 =
  14. 14.355 × 8 =
  15. 15.786 × 9 =
  16. 16.768 × 3 =
  17. 17.941 × 4 =
  18. 18.297 × 5 =
  19. 19.471 × 8 =
  20. 20.368 × 6 =
  21. 21.583 × 8 =
  22. 22.918 × 3 =
  23. 23.741 × 7 =
  24. 24.361 × 3 =
  25. 25.688 × 5 =
  26. 26.341 × 9 =
  27. 27.744 × 9 =
  28. 28.541 × 9 =
  29. 29.145 × 7 =
  30. 30.913 × 6 =
  31. 31.325 × 4 =
  32. 32.964 × 3 =
  33. 33.597 × 5 =
  34. 34.858 × 4 =
  35. 35.178 × 3 =
  36. 36.901 × 6 =
  37. 37.506 × 5 =
  38. 38.117 × 5 =
  39. 39.865 × 6 =
  40. 40.376 × 8 =

Answer key

  1. 1884
  2. 1905
  3. 3192
  4. 6544
  5. 4780
  6. 6648
  7. 2601
  8. 6069
  9. 3141
  10. 2310
  11. 2712
  12. 3932
  13. 6952
  14. 2840
  15. 7074
  16. 2304
  17. 3764
  18. 1485
  19. 3768
  20. 2208
  21. 4664
  22. 2754
  23. 5187
  24. 1083
  25. 3440
  26. 3069
  27. 6696
  28. 4869
  29. 1015
  30. 5478
  31. 1300
  32. 2892
  33. 2985
  34. 3432
  35. 534
  36. 5406
  37. 2530
  38. 585
  39. 5190
  40. 3008

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